I type and paste everything into my notes.txt file. Whenever I have an idea it goes straight into there. (I wrote a short bash program + aliases so I press one

I type and paste everything into my notes.txt file. Whenever I have an idea it goes straight into there. (I wrote a short bash program + aliases so I press one key to start typing into that file, another key to paste clipboard into it, and another to check/search the notes file with "less".) Then later I go through that and move stuff from there to various LaTeX books - one main one for the current year, then specialized ones for programming languages, my programs, maths etc. I really wish I'd started doing that 30 years earlier than I did! I kept a diary, but most of what I was thinking about and working on is just lost and forgotten. Also, being able to include pictures is so nice – like when I'm talking about someone or their work for a paragraph or more, I put their picture next to it.